For casks



(No Model.)

0. HAMMER.

BUSHING FOR GASKS.

No. 363,633. Patented May 24, 1887.

WZneJJeJ: W Ira/622707.

I UNITED STATES PATENT OFFICE.

CONRAD HAMMER, OF BUFFALO, NEW YORK, ASSIGNOR OF ONE-HALF TO GEORGE DITTLY, OF SAME PLACE.

BUSHING FOR CASKS.

$PECIFICATION forming part Of Letters Patent No. 363,633, dated May 24, 1887. Application filed January 3, 188?. Serial No. 223,212. (No model.)

To all whom it may concern:

Be it known that I, CONRAD HAMMER, of the city of Buffalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Bushings for Casks, of

which the following is a specification.

This invention relates to a bushing for casks and kegs, and has for its object to produce a durable bushing which is easily tightened in IO the opening formed in the stave for its reception, and which is adapted to receive the aircock when used in large casks from which the beer or other liquid is removed by air pressure.

[5 My invention consists of the improvements which will be hereinafter ful y set forth, and pointed out in the claim.

In the accompanying drawings, Figure l is a side elevation of myimproved bushing with the air-cock applied. Fig. 2 is a vertical section of the bushing. Fig. 3 is a horizontal section in line a: 00, Fig. 1. Fig. 4 is a vertical section of the bushing without the air-cock attach in en t.

Like letters of reference refer to like parts in the several figures.

A represents the stave of a barrel, cask, or keg provided with the usual opening for the introduction or removal of the liquid.

B represents the cylindrical bushing ar ranged in said opening and provided with a fixed collar or flange, b, which rests against the outer side of the stave.

0 represents an external screw-thread formed 5 on the inner portion of the bushing, and 1) represents a screw-nut or internally-threaded ring applied to the threaded portion 0 of the bushing and bearing against the inner side of the stave. The outer face, (I, of the screw-nut 0 D is made beveled or conical, and enters a similarly-shaped annular recess or counter sink formed on the inner side of the stave around the opening in which the bushing is seated.

0 represents projecting spurs formed on the beveled outer face of the nut D, and adapted to embed themselves in the stave and prevent the nut from turning as the bushing is tight ened.

F represents an externallythreaded extension of the bushing arranged on the outer side of the fixed collar b.

G represents a cap provided with an overhanging flange, g, which is threaded internally and applied to the threaded extension F of the bushing. A suitable washer, h, is interposed between the cap G and the extension F.

-I represents an internally-threaded opening or socket formed centrally in the cap G for the reception of the aircock J. The opening I extends through a six-sided lug, K, formed on the cap, and to which a wrench can be applied for tightening the cap and bushing. When the bushing isdesigned to be used in small kegs for the reception of a bung, the extension 6 F and cap G are omitted, as represented in Fi 4.

For small kegs the bushing is preferably constructed of malleable cast-iron and the nut of brass, while for large casks every part of the device is preferably constructed of brass.

In tightening the bushing by means of a wrench applied to the cap G or by means of an expandingqvreneh inserted in the bushing the beveled nut D is prevented from turning by the spurs c and is drawn tightly against the conical seat in the stave, whereby a tight joint is formed at both ends of the bushing.

This joint is not affected by heat or cold, or by hammering in removing the hung from the bushing.

My improved bushing has no tendency to split the stave, and can be put in place of ordinary bushings without wasting the stave. The application of the air-cock to the bushing for removing the liquid from the cask or barrel by air-pressure avoids boring a hole for the air-cock through the stave. It forms a tighter connection of the cock with the cask than heretofore obtained, and prevents the 0 beer from being disturbed by driving the aircock into the stave.

I claim as my invention The combination of a cylindrical bushing, each end of which is exteriorl y screw-threaded and having a flange around its intermediate portion, an interiorly screw-threaded ring, the outer face of which is beveled and provided with projecting spurs, a cap provided with an interiorly screw-threaded flange and opening, 10:) and a washer, substantially as and'for the purpose set forth.

Witness my hand this 22d day of December,

CONRAD HAMMER. \Vitnesses:

GEo. DITTLY, CARL F. GEYER. 

